Leivonen, M. K., and T. V. Kalima. “Prognostic Factors Associated With Survival After Breast Cancer Recurrence”. Acta Oncologica 30, no. 5 (January 1, 1991): 583–586. Accessed September 2, 2024. https://medicaljournalssweden.se/actaoncologica/article/view/32294.